Phase Segregation and Thermoelectric Properties of AgPbmSbTem+2 m=2, 4, 6, and 8

Abstract

The preparation and characterization of the AgPbmSbTem+2 family of compounds with m=2, 4, 6, and 8 is reported. Phase segregation was observed in all of these materials. The lattice thermal conductivity of these samples is low (<1.1 W/m-K). Powder x-ray diffraction, thermal analysis, and electron microscope investigations of these systems show that ideal solid solutions are not formed. The transport properties of these composite materials are presented and suggest that they could have promising thermoelectric properties when optimized.

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Sootsman, J., Pcionek, R., Kong, H. et al. Phase Segregation and Thermoelectric Properties of AgPbmSbTem+2 m=2, 4, 6, and 8. MRS Online Proceedings Library 886, 805 (2005). https://doi.org/10.1557/PROC-0886-F08-05

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